(1) Except as authorized in this chapter or in chapter 499 and notwithstanding the provisions of s. 893.13:

(a) Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, in excess of 25 pounds of cannabis, or 300 or more cannabis plants, commits a felony of the first degree, which felony shall be known as “trafficking in cannabis,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity of cannabis involved:

1. Is in excess of 25 pounds, but less than 2,000 pounds, or is 300 or more cannabis plants, but not more than 2,000 cannabis plants, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $25,000.

2. Is 2,000 pounds or more, but less than 10,000 pounds, or is 2,000 or more cannabis plants, but not more than 10,000 cannabis plants, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $50,000.

3. Is 10,000 pounds or more, or is 10,000 or more cannabis plants, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $200,000.

For the purpose of this paragraph, a plant, including, but not limited to, a seedling or cutting, is a “cannabis plant” if it has some readily observable evidence of root formation, such as root hairs. To determine if a piece or part of a cannabis plant severed from the cannabis plant is itself a cannabis plant, the severed piece or part must have some readily observable evidence of root formation, such as root hairs. Callous tissue is not readily observable evidence of root formation. The viability and sex of a plant and the fact that the plant may or may not be a dead harvested plant are not relevant in determining if the plant is a “cannabis plant” or in the charging of an offense under this paragraph. Upon conviction, the court shall impose the longest term of imprisonment provided for in this paragraph.

(b)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 28 grams or more of cocaine, as described in s. 893.03(2)(a)4., or of any mixture containing cocaine, but less than 150 kilograms of cocaine or any such mixture, commits a felony of the first degree, which felony shall be known as “trafficking in cocaine,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 28 grams or more, but less than 200 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 200 grams or more, but less than 400 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 400 grams or more, but less than 150 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

2. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 150 kilograms or more of cocaine, as described in s. 893.03(2)(a)4., commits the first degree felony of trafficking in cocaine. A person who has been convicted of the first degree felony of trafficking in cocaine under this subparagraph shall be punished by life imprisonment and is ineligible for any form of discretionary early release except pardon or executive clemency or conditional medical release under s. 947.149. However, if the court determines that, in addition to committing any act specified in this paragraph:

a. The person intentionally killed an individual or counseled, commanded, induced, procured, or caused the intentional killing of an individual and such killing was the result; or

b. The person’s conduct in committing that act led to a natural, though not inevitable, lethal result,

such person commits the capital felony of trafficking in cocaine, punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

3. Any person who knowingly brings into this state 300 kilograms or more of cocaine, as described in s. 893.03(2)(a)4., and who knows that the probable result of such importation would be the death of any person, commits capital importation of cocaine, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(c)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 4 grams or more of any morphine, opium, oxycodone, hydrocodone, hydromorphone, or any salt, derivative, isomer, or salt of an isomer thereof, including heroin, as described in s. 893.03(1)(b), (2)(a), (3)(c)3., or (3)(c)4., or 4 grams or more of any mixture containing any such substance, but less than 30 kilograms of such substance or mixture, commits a felony of the first degree, which felony shall be known as “trafficking in illegal drugs,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 4 grams or more, but less than 14 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 14 grams or more, but less than 28 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 28 grams or more, but less than 30 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 25 calendar years and pay a fine of $500,000.

2. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 30 kilograms or more of any morphine, opium, oxycodone, hydrocodone, hydromorphone, or any salt, derivative, isomer, or salt of an isomer thereof, including heroin, as described in s. 893.03(1)(b), (2)(a), (3)(c)3., or (3)(c)4., or 30 kilograms or more of any mixture containing any such substance, commits the first degree felony of trafficking in illegal drugs. A person who has been convicted of the first degree felony of trafficking in illegal drugs under this subparagraph shall be punished by life imprisonment and is ineligible for any form of discretionary early release except pardon or executive clemency or conditional medical release under s. 947.149. However, if the court determines that, in addition to committing any act specified in this paragraph:

a. The person intentionally killed an individual or counseled, commanded, induced, procured, or caused the intentional killing of an individual and such killing was the result; or

b. The person’s conduct in committing that act led to a natural, though not inevitable, lethal result,

such person commits the capital felony of trafficking in illegal drugs, punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

3. Any person who knowingly brings into this state 60 kilograms or more of any morphine, opium, oxycodone, hydrocodone, hydromorphone, or any salt, derivative, isomer, or salt of an isomer thereof, including heroin, as described in s. 893.03(1)(b), (2)(a), (3)(c)3., or (3)(c)4., or 60 kilograms or more of any mixture containing any such substance, and who knows that the probable result of such importation would be the death of any person, commits capital importation of illegal drugs, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(d)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 28 grams or more of phencyclidine or of any mixture containing phencyclidine, as described in s. 893.03(2)(b), commits a felony of the first degree, which felony shall be known as “trafficking in phencyclidine,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 28 grams or more, but less than 200 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 200 grams or more, but less than 400 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 400 grams or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

2. Any person who knowingly brings into this state 800 grams or more of phencyclidine or of any mixture containing phencyclidine, as described in s. 893.03(2)(b), and who knows that the probable result of such importation would be the death of any person commits capital importation of phencyclidine, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(e)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 200 grams or more of methaqualone or of any mixture containing methaqualone, as described in s. 893.03(1)(d), commits a felony of the first degree, which felony shall be known as “trafficking in methaqualone,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 200 grams or more, but less than 5 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 5 kilograms or more, but less than 25 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 25 kilograms or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

2. Any person who knowingly brings into this state 50 kilograms or more of methaqualone or of any mixture containing methaqualone, as described in s. 893.03(1)(d), and who knows that the probable result of such importation would be the death of any person commits capital importation of methaqualone, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(f)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 14 grams or more of amphetamine, as described in s. 893.03(2)(c)2., or methamphetamine, as described in s. 893.03(2)(c)4., or of any mixture containing amphetamine or methamphetamine, or phenylacetone, phenylacetic acid, pseudoephedrine, or ephedrine in conjunction with other chemicals and equipment utilized in the manufacture of amphetamine or methamphetamine, commits a felony of the first degree, which felony shall be known as “trafficking in amphetamine,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 14 grams or more, but less than 28 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 28 grams or more, but less than 200 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 200 grams or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

2. Any person who knowingly manufactures or brings into this state 400 grams or more of amphetamine, as described in s. 893.03(2)(c)2., or methamphetamine, as described in s. 893.03(2)(c)4., or of any mixture containing amphetamine or methamphetamine, or phenylacetone, phenylacetic acid, pseudoephedrine, or ephedrine in conjunction with other chemicals and equipment used in the manufacture of amphetamine or methamphetamine, and who knows that the probable result of such manufacture or importation would be the death of any person commits capital manufacture or importation of amphetamine, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(g)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 4 grams or more of flunitrazepam or any mixture containing flunitrazepam as described in s. 893.03(1)(a) commits a felony of the first degree, which felony shall be known as “trafficking in flunitrazepam,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 4 grams or more but less than 14 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 14 grams or more but less than 28 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 28 grams or more but less than 30 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 25 calendar years and pay a fine of $500,000.

2. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state or who is knowingly in actual or constructive possession of 30 kilograms or more of flunitrazepam or any mixture containing flunitrazepam as described in s. 893.03(1)(a) commits the first degree felony of trafficking in flunitrazepam. A person who has been convicted of the first degree felony of trafficking in flunitrazepam under this subparagraph shall be punished by life imprisonment and is ineligible for any form of discretionary early release except pardon or executive clemency or conditional medical release under s. 947.149. However, if the court determines that, in addition to committing any act specified in this paragraph:

a. The person intentionally killed an individual or counseled, commanded, induced, procured, or caused the intentional killing of an individual and such killing was the result; or

b. The person’s conduct in committing that act led to a natural, though not inevitable, lethal result,

such person commits the capital felony of trafficking in flunitrazepam, punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(h)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 1 kilogram or more of gamma-hydroxybutyric acid (GHB), as described in s. 893.03(1)(d), or any mixture containing gamma-hydroxybutyric acid (GHB), commits a felony of the first degree, which felony shall be known as “trafficking in gamma-hydroxybutyric acid (GHB),” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 1 kilogram or more but less than 5 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 5 kilograms or more but less than 10 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 10 kilograms or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

2. Any person who knowingly manufactures or brings into this state 150 kilograms or more of gamma-hydroxybutyric acid (GHB), as described in s. 893.03(1)(d), or any mixture containing gamma-hydroxybutyric acid (GHB), and who knows that the probable result of such manufacture or importation would be the death of any person commits capital manufacture or importation of gamma-hydroxybutyric acid (GHB), a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(i)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 1 kilogram or more of gamma-butyrolactone (GBL), as described in s. 893.03(1)(d), or any mixture containing gamma-butyrolactone (GBL), commits a felony of the first degree, which felony shall be known as “trafficking in gamma-butyrolactone (GBL),” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 1 kilogram or more but less than 5 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 5 kilograms or more but less than 10 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 10 kilograms or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

2. Any person who knowingly manufactures or brings into the state 150 kilograms or more of gamma-butyrolactone (GBL), as described in s. 893.03(1)(d), or any mixture containing gamma-butyrolactone (GBL), and who knows that the probable result of such manufacture or importation would be the death of any person commits capital manufacture or importation of gamma-butyrolactone (GBL), a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(j)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 1 kilogram or more of 1,4-Butanediol as described in s. 893.03(1)(d), or of any mixture containing 1,4-Butanediol, commits a felony of the first degree, which felony shall be known as “trafficking in 1,4-Butanediol,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 1 kilogram or more, but less than 5 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 5 kilograms or more, but less than 10 kilograms, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 10 kilograms or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $500,000.

2. Any person who knowingly manufactures or brings into this state 150 kilograms or more of 1,4-Butanediol as described in s. 893.03(1)(d), or any mixture containing 1,4-Butanediol, and who knows that the probable result of such manufacture or importation would be the death of any person commits capital manufacture or importation of 1,4-Butanediol, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(k)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 10 grams or more of any of the following substances described in s. 893.03(1)(a) or (c):

a. 3,4-Methylenedioxymethamphetamine (MDMA);

b. 4-Bromo-2,5-dimethoxyamphetamine;

c. 4-Bromo-2,5-dimethoxyphenethylamine;

d. 2,5-Dimethoxyamphetamine;

e. 2,5-Dimethoxy-4-ethylamphetamine (DOET);

f. N-ethylamphetamine;

g. N-Hydroxy-3,4-methylenedioxyamphetamine;

h. 5-Methoxy-3,4-methylenedioxyamphetamine;

i. 4-methoxyamphetamine;

j. 4-methoxymethamphetamine;

k. 4-Methyl-2,5-dimethoxyamphetamine;

l. 3,4-Methylenedioxy-N-ethylamphetamine;

m. 3,4-Methylenedioxyamphetamine;

n. N,N-dimethylamphetamine; or

o. 3,4,5-Trimethoxyamphetamine,

individually or in any combination of or any mixture containing any substance listed in sub-subparagraphs a.-o., commits a felony of the first degree, which felony shall be known as “trafficking in Phenethylamines,” punishable as provided in s. 775.082, s. 775.083, or s. 775.084.

2. If the quantity involved:

a. Is 10 grams or more but less than 200 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 200 grams or more, but less than 400 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 400 grams or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $250,000.

3. Any person who knowingly manufactures or brings into this state 30 kilograms or more of any of the following substances described in s. 893.03(1)(a) or (c):

a. 3,4-Methylenedioxymethamphetamine (MDMA);

b. 4-Bromo-2,5-dimethoxyamphetamine;

c. 4-Bromo-2,5-dimethoxyphenethylamine;

d. 2,5-Dimethoxyamphetamine;

e. 2,5-Dimethoxy-4-ethylamphetamine (DOET);

f. N-ethylamphetamine;

g. N-Hydroxy-3,4-methylenedioxyamphetamine;

h. 5-Methoxy-3,4-methylenedioxyamphetamine;

i. 4-methoxyamphetamine;

j. 4-methoxymethamphetamine;

k. 4-Methyl-2,5-dimethoxyamphetamine;

l. 3,4-Methylenedioxy-N-ethylamphetamine;

m. 3,4-Methylenedioxyamphetamine;

n. N,N-dimethylamphetamine; or

o. 3,4,5-Trimethoxyamphetamine,

individually or in any combination of or any mixture containing any substance listed in sub-subparagraphs a.-o., and who knows that the probable result of such manufacture or importation would be the death of any person commits capital manufacture or importation of Phenethylamines, a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(l)1. Any person who knowingly sells, purchases, manufactures, delivers, or brings into this state, or who is knowingly in actual or constructive possession of, 1 gram or more of lysergic acid diethylamide (LSD) as described in s. 893.03(1)(c), or of any mixture containing lysergic acid diethylamide (LSD), commits a felony of the first degree, which felony shall be known as “trafficking in lysergic acid diethylamide (LSD),” punishable as provided in s. 775.082, s. 775.083, or s. 775.084. If the quantity involved:

a. Is 1 gram or more, but less than 5 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 3 years, and the defendant shall be ordered to pay a fine of $50,000.

b. Is 5 grams or more, but less than 7 grams, such person shall be sentenced to a mandatory minimum term of imprisonment of 7 years, and the defendant shall be ordered to pay a fine of $100,000.

c. Is 7 grams or more, such person shall be sentenced to a mandatory minimum term of imprisonment of 15 calendar years and pay a fine of $500,000.

2. Any person who knowingly manufactures or brings into this state 7 grams or more of lysergic acid diethylamide (LSD) as described in s. 893.03(1)(c), or any mixture containing lysergic acid diethylamide (LSD), and who knows that the probable result of such manufacture or importation would be the death of any person commits capital manufacture or importation of lysergic acid diethylamide (LSD), a capital felony punishable as provided in ss. 775.082 and 921.142. Any person sentenced for a capital felony under this paragraph shall also be sentenced to pay the maximum fine provided under subparagraph 1.

(2) A person acts knowingly under subsection (1) if that person intends to sell, purchase, manufacture, deliver, or bring into this state, or to actually or constructively possess, any of the controlled substances listed in subsection (1), regardless of which controlled substance listed in subsection (1) is in fact sold, purchased, manufactured, delivered, or brought into this state, or actually or constructively possessed.

(3) Notwithstanding the provisions of s. 948.01, with respect to any person who is found to have violated this section, adjudication of guilt or imposition of sentence shall not be suspended, deferred, or withheld, nor shall such person be eligible for parole prior to serving the mandatory minimum term of imprisonment prescribed by this section. A person sentenced to a mandatory minimum term of imprisonment under this section is not eligible for any form of discretionary early release, except pardon or executive clemency or conditional medical release under s. 947.149, prior to serving the mandatory minimum term of imprisonment.

(4) The state attorney may move the sentencing court to reduce or suspend the sentence of any person who is convicted of a violation of this section and who provides substantial assistance in the identification, arrest, or conviction of any of that person’s accomplices, accessories, coconspirators, or principals or of any other person engaged in trafficking in controlled substances. The arresting agency shall be given an opportunity to be heard in aggravation or mitigation in reference to any such motion. Upon good cause shown, the motion may be filed and heard in camera. The judge hearing the motion may reduce or suspend the sentence if the judge finds that the defendant rendered such substantial assistance.

(5) Any person who agrees, conspires, combines, or confederates with another person to commit any act prohibited by subsection (1) commits a felony of the first degree and is punishable as if he or she had actually committed such prohibited act. Nothing in this subsection shall be construed to prohibit separate convictions and sentences for a violation of this subsection and any violation of subsection (1).

(6) A mixture, as defined in s. 893.02, containing any controlled substance described in this section includes, but is not limited to, a solution or a dosage unit, including but not limited to, a pill or tablet, containing a controlled substance. For the purpose of clarifying legislative intent regarding the weighing of a mixture containing a controlled substance described in this section, the weight of the controlled substance is the total weight of the mixture, including the controlled substance and any other substance in the mixture. If there is more than one mixture containing the same controlled substance, the weight of the controlled substance is calculated by aggregating the total weight of each mixture.